The Gnome Press edition of Conan was the first hardcover collection of Howard's Conan stories, including all the original Howard material known to exist at the time, some left unpublished in his lifetime. Not published in order of previous publication, Gnome's volumes were organized to present the stories in order of their internal chronology, the sole exception being Tales of Conan, which skipped around to present random episodes from various points in the protagonist's career. Some stories in two of the later volumes (The Coming of Conan and King Conan) were completed or revised by L. Sprague de Camp; another (Tales of Conan) consisted of non-Conan Howard stories that de Camp rewrote as Conan yarns. The last published volume of the Gnome edition was the first Conan story by an author other than Howard, namely Björn Nyberg, and was revised by de Camp.

The first comprehensive paperback edition, which compiled the existing Howard and non-Howard stories together with new non-Howard stories in order of internal chronology, to form a complete account of Conan's life. Lancer Books initially numbered its volumes in order of publication, switching to a chronological numbering for volumes published later and reprints of the earlier volumes. Lancer went out of business before bringing out the entire series, and publication was completed by Ace Books.

This edition of the stories was the one that introduced Conan into popular culture. Undertaken under the direction of de Camp and Carter, it includes all the original Howard material, including that left unpublished in his lifetime and fragments and outlines. De Camp edited much of the material and he and Carter completed the stories that were not in finished form. New stories written entirely by themselves were added as well. In the following list, volumes 6 and 11–12 do not contain any material by Howard. Of the thirty-five stories in the other eight volumes, nineteen were published or completed by Howard during his lifetime, ten are rewritten or completed from his manuscripts, fragments or synopses, and six are the sole work of de Camp and Carter. Eight of the eventual twelve volumes published in this series featured dynamic cover paintings by Frank Frazetta** that, for many fans, presented the "definitive" impression of Conan and his world.

A series of illustrated limited editions of the Howard Conan stories only, containing one or two stories per volume. The series ran out of steam before publishing the last five of the stories and three of the fragments.

Edited by Karl Edward Wagner, this series, like the Grant edition, included only the Howard Conan stories in their original published form, and included all the Conan stories in the public domain at the time (though their copyright status was not widely known). Wagner's introductions are openly dismissive of the editorial revisions done by de Camp and Carter on the Lancer/Ace editions.

A series of non-Howard material continuing and supplementing the Lancer/Ace series. Bantam numbered their volumes in order of intended publication, but in the event volume 5 was issued after volume 6, and volume 7 was issued without numbering.

A series of new material by Andrew J. Offutt and old Howard/de Camp collaborations, all illustrated by Esteban Maroto. The Offutt stories, in combination with his Conan: The Sword of Skelos from the Bantam series, form a linked trilogy.

A series of new stories by various hands; later, Tor also reissued most of the previous non-Howard volumes originally published by Bantam, and published a few omnibus editions of previously published volumes. The Tor volumes were not published in chronological order, but skipped around to present random episodes from various points in Conan's career. Occasional chronological essays included in some of the earlier volumes (initially by L. Sprague de Camp and later by Robert Jordan) assisted readers in placing the episodes in their proper context; later volumes did not include such aids. De Camp provided chronological fixes for the first seven volumes (Conan the Invincible through Conan the Victorious), and Jordan for the first sixteen (Conan the Invincible through Conan the Valiant), with the odd exception of the eighth, Conan the Valorous. As both efforts also covered the earlier Lancer/Ace and Bantam Conan series, they also in effect provided fixes for the Bantams afterwards reissued by Tor (though they disagreed on the placement of three of these). Tor's listings in various volumes of books published in the series to date were in neither chronological nor publication order, but alphabetical by title.

In the early 1990s the Russian publishers Troll and North-West (Severo-Zapad) hired local authors to write additional adventures of the Cimmerian.[1][2] The authors took appropriately sounding pen names like Michael Manson, Douglas Brian, Duncan McGregor, and Paul Winlow (Nick Perumov), the titles, numbering at least 46 volumes, as of 2012 still unavailable to the rest of the world, include new adventures like Blue Poppies, Mithra's Gift, The Heart of Ahriman, Ghost of the Past, A Tiger at the Gates of Shadizar, and others.[3] The author Mikhail Akhmatov participated not only as author "Michael Manson", but also in working out the logistics of the project, so that Conan never appears in different places at the same time in the books of the various authors.[4]

A new edition of Howard's original stories purporting to feature all of Howard's Conan fiction in the two volumes, and to present only Howard's writings. Includes all the classic stories, apparently in their unrevised form (The Black Stranger is quite different from its De Camp cognate The Treasure of Tranicos); uncompleted or fragmentary tales have been left in that state. The two parts were put together in 2006 to form one stand alone Centenary Edition to celebrate the 100 years since the birth of Howard.

A three volume collection of Howard's original stories, published by Wandering Star in the United Kingdom and Del Rey (a division of Random House) in the United States. These editions contain notes, rough drafts, and other miscellanea by Howard. Each volume is illustrated, by Mark Schultz, Gary Gianni, and Greg Manchess, respectively.